Hi everyone. I just got an 09 civic and decided I wanted to put a sub and an amp into it. I'm satisifed for now with the stock head unit and the speakers, but I just wanted to add some more bass to start with. I've done my research, so I have a pretty general idea about what I'm doing. I went and picked up some subs and an amp off craigslist tonight. Stoked to install them!